Machine for automatically applying molten solder to rims of can-caps.



No. 820,358. EATENTED MAY 8, 190's 3. G. HODGSOfi.

MACHINE FOR AUTOMATIGALLY APPLYHQG EGLTEN SOLDER T0 RIMS OF SAN CABS.

APPL UATIOF FILED D30 18. E365,

- 3 SHEETS-SHEET 1.

No. 820,368. PATENTED MAY a, 1906 J. G. HODGSON. 4 MACHINE FORAUTOMTIGALLY APPLYING MOLTEN SOLDBR TQRIMS OF CAN CAPS.

APPLIGATION FILED DEG. 1a, 1905.

3 SHEBTSSHEBT i5 a 2 a 1 f 3 X f r k f B b 1 2F .2 5. 4 a 1 a a w x UNITED STATES JOHN G. HODGSGN, OF MAYWOOD.

CAN COMPANY, OF NEW YORK, N.

JERSEY.

PATENT OFFICE.

ILLINOIS, ASSlGNGR TO AMERICAN Y.. A CORPORATION OF NEW JMACHINE FOR AUTOMAYICALLY APPLYING MOLTEN SOLDER TO RltlS 9F CAN-CW8.

Specification of Letters Patent.

ratented May 8, 1906.

Application filed December 18,1fi05. Serial Ho. 392,245.

"can-caps. or sheetmetal cans, the same he ing caps for closin the filling-openings in the heads ofcar'is, an which have their rims or solde fianges furnished with solder necessary or solderingthc caps on the cans? and m invention relates more particularly" :to mac es for manufacturing that kind or class of solder-charged can-caps in which the solder is applied in a molten state to the up per or outside face of the can-cap and insib y united with the rim-coating thereof, so that the solder will be permanently and securely fixed to the cap. The obiect of my invention is to rovide an automatic machine of a simple, e cient; and durable construction by means of which molten solder may be rap dly and cheaply y applied to the rims of can-caps and fusi united to the tin coating thereof.

7 My invention consists in the means I employ to practically accomplish this object or resultthat is to say, it consists, in connec .tion with a. molten-solder pot or vessel, of a pump or cylinder and piston therein for orcing the molten solder under pressure into a mold and upon the outer face of the rim of thecan-cap contained therein, a mold ads. ted to receive the can-caps in turn; one 1' another, and provided with an annular recess in connection with the molten solder in the solder st or vessel and into which the molten sol er may he forced iinder pressure when the can-cap is forced on or against the mold, a choker-valvein the. channel or com munication connecting the valve with the,

solder-pot and pump-cylinder therein, a canca carrier hed with a series of movab e can-cap holders or plunger-s, the carrier operating to hring the can-caps and their holders snoe'essively'in' turn into position for re stry the mold, and each can-cap ho den or plunger operatin to force the cancap into or against the mol so that the can cap itself will close the lower face of the mold when the molten solder is forced by the pisston into the mold by the rim of the can-cap, and a can-cap feeder for automatically feeding or delivering the can-caps upon the can-- cap holders or plnngers of the carrier, so that the operation of applying the molten solder to the rims of the ca s me he erformed automatically and wit ont land ahor and rapidly and. cheaply.

' iiy hisention also consists in the novel devices arid in the novel combinations of parts and dhsices herein shown or described.

In the accompanying drawings, forming a partcf this specification, Figure 1 is a plan view of an automatic machine for applying niolten'solder to the rims of can'caips smbojd' fing my invention. Fig. 2 is an clever ,on line 3 3 of Fig. 2. Fig. 4 is a detail section oi the mold and other cooperatin parts, showi the can-cap in position in the mold to receive the charge of molten solder on its rim. Fig. 5 is an enlarged sectional view showing the solder-charged can-cap as manufactured by the machine.

in the drawings, A represents the frame of the machine.

Bis the molten-solder pot or vessel, and C represents heaters, preferably gas-burners, for melting and keeping molten the solder therein. The molten-solder pot or vessel B hasasoldegohamher h, and a piston chamher bfrfjcilindcr bf. in which the pump-piston -11} reciirocates to ierce the molten solder throng theisclder channel or connection la and i 'alrofihanlhr h into the mold F, which. has on its under side a circular recess or seat f to reoeire the can-cap X, and an annular recess f to receive the molten solder uponcan-cap and form the solder into a solder head or annulus x upon the rim of the ca The annnl'ar soider-recessf of the 'rno'ld is thus in difect communication with the molten the char vessel The valve-chamber 12 also as admit or connection 1), connecting with' the inolten solder in the pot or sessel B, independent of the pump cylinder 6: piston.

'gwhish. is engaged by the reciprocatin ch the npper or outer face X of the rim 3 of the 5 solder in'the pnm cylinder or chamber of I00 'fihe salve-chamber b has a valve=seat E2 1o5 valve G to close the duct or communication Zr, leading from the valve-chamber to the molten solder in the pot or vessel B. The mold F is preferably made in a separate piece from t ie pot or vessel B and is provided with flanges f for securing the same to the pot or vessel by suitable screws or bolts 1. The valve-chamber b is preferably formed partly in the pot or vessel B and partly in the piece or part F of which the mold F is formed. The reciprocating valvestem g, carrying the choker-valve G, is also provided with a dischar e-valve G, which engages the valve-seat to close the discharge-orificef leading to the annular solder-receiving recess f of the mold F.

The mold F is furnished with a cap-e'ector F having a stem f, furnished with a collar f and a spring] for actuatin the ejector to discharge the ca from the mo (1 after the solder has been app ied to its rim. The ejector F or its stemf is mounted on a bracket F, attached to the solder pot or vessel B b a screw The ejector-bracket F is furnislied with a setscrew F to take the strain or thrust of the cap-holder or plunger H eff of the mold F or is supports.

H is an intermittently-moving carrier,

preferably a horizontally-rotating turret or and preferabl wheel, furnished with a series of movable can-cap holders, chucks, or plungers H, each having a seat It to receive a can-ca ,the same being referabl sha ed to fit an correspond to t elower ace 0 the can-cap. By its intermittent rotary movement the cancap carrier H brings each of the cap-holders H and the can-cap thereon into position for registry with the mold F, and then by the upward or reciprocating movement of the capholder H the cap X is moved upward and forced and clamped against the lower face of the mold F, so that the cap X or its rim as itself forms the lower wall of the annular solder-receiving recessf of the mold. Each of the cap-holders H is provided with a stem h with a spring h to retract the holder. Eac 1 of the can-cap holders H is in turn moved upward or reeiprocated, as reuired, to clamp the can-cap thereon against t e mold F, preferably by means of a vibrating lever 71?, connecting-link h", and cam h on the cam-shaft K.

The cylinder or chamber of the solderpum is preferably formed integr with the pot as illustrated in the draw gs. The piston D of the pump has a duct or passa e (Z through the same for admission of the so der from the pot B to the chamber or cylinder of the pump. The piston D of the pump or its stein d is preferably operated or reciprocated, as required, by means of a lever I), connecting-link D, and cam D on the camshaft K.

The choker and discharge valves G G or their stem 9 is preferably reciprocated or operated,as required, by means of a bent lever G connecting-link G, and cam G on the cam-shaft K. The intermittently moying or rotating carrierHis preferablygiven its stepbystep movement and intermittently locked in position for registry of its can-cap holders in turn, successively, with the mold F by a Geneva stop mechanism H H H, the rotating arm H carryin the in H which enages the slots H o the disk H the arm H elng on a shaft H, having ear H, meshing with ear H on the shaft I", which has a gear meshing with a gear H on the canshaft K.

P is a can-cap feeder, preferably an inclined chute,for automatically deliverin the can-caps one by one upon the can-cap olders H of the carrier H as the carrier intermittently rotates. The feeder P is preferably furnished with a guide P for directing the cap upon the cap holder H below. The feeder P is further preferably furnished with a vibrating esca ement P having pins or stops p p to re ease the caps one by one. The escapement P is furnished with a spring P and is preferably vibrated .or operated, as required, by means of the cam h on the shaft K, connecting-link h, arm P on lever k ver P connecting-link P, arm P, on lever P Each of the can-cap holders H is referably furnished with a cap-ejector h, having a spring h for retracting the same. The stem h of the cap-ejector h enga es a stationary projection or cam h on the rame, which operates the ejector as the carrier H rotates.

M is the discharge-chute by which the finished caps are discharged from the machine. This discharge-chute is furnished with a curved guard or arm M for deflecting the caps into the discharge-chute as the carrier rotates.

I claim 1. In a machine for automatically applying ceive the molten sol er and apply it to the rim of the can-cap, an intermittently-moving carrier, a series of can-cap holders, chucks or plungers mounted on said carrier to force and clamp in turn the can-caps against said moh and a can-cap feeder for delivering the caneaps to said holders on the carriers, substantially as specified.

2. In a machine for applying molten solder upon the rims of can-caps, the combination of a molten-sol er pot or vessel, of a mol 1 connecting therewith, means for forcing the molten solder from said pot or vessel into said moll and an intermittently-moving can-cap carrier having a series of movable can holders or chucks mounted thereon to force the canor chucks to force and clamp caps upon to the rims of can-caps, t

caps each in turna'gainst said mold, substantially as specified.

3. In a machine for applying molten solder upon the rims of can-caps, the combination of a moltcn-soltler pot or vessel of a mold connecting therewith, means ior forcing the molten solder from said not or vessel into said mold and an intermittently-moving can-cap carli or having a series of movable cap holders or chucks mounted thereon toforce the cancaps each in turn against said mold, and .a can-cap feeder for delivering the can-caps upon said holders or chucks of the carrier, substantially as specified.

4. In a machine for automatically appl ing molten solder to the rims of can-caps, t e combination with a molten-solder pot or ves. sel, of a mold communicating therewith and having on its lower face a can-cap-receiving seat or recess, and provided with an annular solder-receiving recess, a valve-chamber and discharge-valve interposed between said mold and solcer pot or vessel means solder from said pot or vessel into said mold and an intermittently-moving can-cap carrier furnished with a plurality of can-cap holders the can-ca 7 each in turn against said mold, substantia y as specified.

5. In a machine for automatically appliing nfolten solder to the rims of can-caps, t e combination with a molten solder pot or-v'essal, of a mold communicating therewith and having on its lower face a can capreceiving seat or recess, and provided with an annular solder-receiving recess, a valve-chamber, a discharge-valve interposed between said mold and solder pot or vesse means for forcing the solder from said pot or vessel into said mold, and an intemlittently-moving can-cap carrier furnished with a plurality of can-cap holders or chucks to force and clam the can-caps each in turn against said mol and a can-cap feeder for automatically delivering the cansaid can-ca holders or chucks of substantia y as specified.

lying molten solder e combination with a molten-solder pot or vessel, of a mold immovably connected thereto and in communithe carrier,

6. In a machine for up cation with the molten solder in said pot or vessel, means for forcing the molten solder into said mold, a can-cap carrier and a plu rality ofmovable can-cap holders on the carrier arranied to deliver the can-caps succes sively to t e mold, substantially as specified.

7. In a machine for ap' lying molten solder to the rims of can-caps, t e combination with a molten-solder pot or vessel, of a mold immovably connected thereto and in common? cation with the molten solder in said pot or vessel, means for forcing the molten solder into said mold, a can-cap carrier and a plur'ality of movablecan-cap holders on the carrier arranged to deliver the can-caps successively to the mold, and a can-cap-feed chute, substantially as specified.

8. In a machine for applying molten solder to the rims of can-caps, t e combination with a molten-solder pot or vessel, of a mold im'- movably connected cation with the molten solder in said pot or vessel, means for forcing the molten solder into said mold, a can-cap carrier and a plurality of movable can-cap holderson the carrier arranied to deliver the can-ca s successively to t e for forcing the recess to receive provided with a movable escapcment substantially as sple lgifi 9. Inc. mac efor ap lying molten solder to the clean-caps, t e combination with a molten-solder pot or vessel, of a mold immovebly connected thereto and in communication'with the molten solder in ,said pot or vessel, means for forcing the molten solder into said mold, rality of movable can-cap'holders on the carrier arranged to deliver the can-ca s sueces sively to the mold, and a can-capeed chute provlded with a. movable escapenaent, and a ids-ring, substantially as specified,

10. In a machine for automatically appl ing molten solder to the rims of can-cape, t a combination with a stationary mold ha can-cap seat in its under face and an annu ar the soldenpf an intermit- 'er having a pluralit of movable can-cap holders or chucks to orce and clamp the calrcaps in turn against said mold, substantially as specified.

11. In a machine for automatically appl ing molten solder to the rims of can-caps, t e combination with a stationary mold ha a can-cap seat in its under face and an annu ar recess to receive the solder, of an intermittently-moving carrier having a pluralit of ,movable' and clam the can-ca mold an a can-cap spec' ed.

. 12. In a machine ing molten solder to the rims of can-caps, t e combination with a stationary mold havin a can-capseat in its under face and an annu ar recess to receive the solder, of an intermittently-moving carrier having a plurality of movable can-cap holders or chucks to force and clam the can-caps in turn against said mold, an means for forcing molten solder into said mold, substantially as specified.

o, 13. In a machine for automatically applying molten solder to the rims of can-caps, t e combination with a stationary mold having a can-cap seat in its under face and an annular recess to receive the solder, of an intermittently-moving carrier having aplurality movable can+cap holders or chucks to and clamp the can-caps in turnagainst said mold, a molten-solder ot or vessel in commul nication with said mol and a piston or pluntently-moving s in turn against sai coder, substantially as a can-cap carrier and a plu- 7 thereto and in commummold, and a. can-capeed chute can-cap holders or chucks to orce for automatically appl i of rce.

ger for forcing molten solder from the solderpot into said mold upon the rim of the cancap, substantially as specified.

14. In a machine for automatically app] ing molten solder to the rims of can-caps, t e combination with a stationarygnold having a can-cap seat in its under face and an annular recess to receive the solder, ofan intermittently-moving carrier having a plurality of movable can-cap holders or chucks to force and clamp the can-caps in turn against said moldf'a molten-solder pot or vessel in communication with said mold, and a iston or plunger for forcing molten solder mm the solder-pot into sai mold upon the rim of the can-cap, and a valve-chamber and 'a discharge-valve, substantially as specified.

15; In a machine for automatically app] L ing molten solder to the rims of can-caps wt e combination with a stationary mold havin I 'a can-cap seat in its under face and an annu ar recess to receive the solder, of an intermittently-moving carrier having a pluralityof 'movable can-cap holders or chucks to force ahd clamp the can-caps in. turn against said mold, a molten-solder pot or vessel in comiston or om the municationwith said niold, and a plunger for forcing molten solder solder-pot into said mold upon the rim of the can-cap, and a valve-chambgr a.discharg'e valve and a choker-valve, suhstantially as speciiied."

161"In a machine for automatically appl ing moltensolder to the rims of can-caps, t e

combination with a stationary mold having a can-cap seat in its under face andan annular recess to receive the solder, of an intermittently-moving carrier having a plurality of movable can-cap holders or chucks-to force and clamp the can-caps in turn against said mold, a molten-solder pot or vessel'in' communication withsaid mold, and a iston or plunger for forcin molten solder min the solder-pot into sai moldu on'the rim of the can-cap, and a valve-cham er-an'd a chokervalve, substantially as specified.

17 In a machine for automatically appllying molten solder to the-rims of can-caps, t

combination with a stationary mold havin a can-cap seat in its under face and an annu ar recess to receive the solder, of an intermittently-moving carrier having a pluralit of movable can-cap holders or chucks to orce and clamp the can-caps in turn against said mold, a molten-solder pot or vessel in communication with said mold, and a iston or plunger for forcin molten solder om the solder-pot into sai mold upon the rim of the can-cap, and a can-cap feeder, substantially f-JOHN G. HODGSON.

.as specified.

Witnesses:

PEARL ABRAMS, H. M. MUNDAY. 

